How To Use An Engine Degreaser Spray

Are you facing the sticky problem of a greasy engine? Well, why don’t you do something about it, because you DO NOT need a professional to take care of it for you? Considering the kind of tools that are available in the market, nowadays, it can safely be said that the days of requiring elbow grease to degrease an engine of your car are long gone. With the assistance of a few tools (namely: a degreaser) you can take care of clean and degrease your greasy engine by following these easy steps:

Preparing Your Engine for the Cleaning Job

Before you can degrease and clean the engine, it’s important to prepare the engine for it. And how do you do that? Well, by giving it a preliminary cleaning job, of course! Here’s how the preliminary cleaning job is supposed to be done, folks:

Remove the Existing Debris

The first thing that you’ve got to do is remove any debris that might be present in the engine bay. What this means is that everything that’s not supposed to be in there should not exist in there. Grass, twigs, leaves, paper and other such things should be removed, for they can cause issues in the engine overtime.

Protect What Needs To Be Protected

Your cleaning job is, obviously, going to involve water, right? Well, the bad news is that the water can cause damage to the electrical components and blow a fuse or two. However, there’s a way to prevent this from happening: remove the battery from the engine and clean it separately outside. To do this, you’ll need to disconnect both of the battery terminals. Next, you’ll need to cover up all of the exposed wirings and components as well. To do this, wrap plastic around components such as the spark plug inlets and the distributor cap. Do the same for loose wires as well, for it will make the components relatively waterproof.

Run the Engine

But weren’t we in the preliminary stages of giving our engines a cleaning job? Don’t worry; running the engine is a part of the process. How? Well, let’s just say that it’s easier to get rid of grease when it is heated. And what better way to heat it up then by heating up the engine, right? In all seriousness, keeping the engine running for about five minutes or so will help in easier removal of any grease and grime that might be present!

The “Actual” Cleaning Job

Once your engine is in a “cleanable” shape, it’s time to actually degrease and clean it. Here’s what you need to do to ensure that your car gets the best possible cleaning job:

Use a Degreaser for Getting Rid of the Grease and Grime

It’s time, finally, to degrease your engine. To do this, you’ll need the aid of a degreaser spray. While there are many brands of degreaser sprays available in the market, we recommend WD-40 Specialist Degreaser. This fast acting, solvent based degreaser, is able to effectively remove grease and grime from your engine without leaving a residue. Looking after your engine will help it last longer and function smoothly as well. When applying the degreaser spray, however, it’s important avoid getting it onto the painted components, for it could clear the paint from the surface of your car. Also, always follow the manufacturers guidelines before using any products on your engine.

The WD-40 Specialist Degreaser functions by eating into the grime and grease of your engine. The dirtier the engine is the more time it’ll need to be soaked into WD-40’s magic. As a rule of thumb, let the product sit on the surface of your engine for about 3-5 minutes, depending upon the condition of your engine, before scrubbing it off. Talking about scrubbing, you’ll need bristled brush to get the grime off. Going by the quality of the degreaser spray applied, it can safely be said that you won’t require much of elbow grease. However, it’s imperative for you to wear eye protection before going through with job. Rinse the engine with a hose afterwards. Make sure, however, that you’d covered all of the electrical components with plastic protection (like you were supposed to in the preliminary cleaning!).

Wash the Car

While you’re at it, why not wash the entire car as well? Washing the car right after the usage of a degreaser spray will ensure that any degreaser spray that might have found its way to your car’s painted components is washed off immediately, before it’s had a chance to do any real damage. Washing will also make the exterior of your car as grime free as your engine!

Finishing the Job Off

After you’ve degreased the engine, it’s recommended to clean the individual parts as well. For example, cleaning the terminals of your car battery with a wire brush and using a bristled brush to clean the plastic surfaces are all important parts of giving your engine a clean. Remember, your car will only work as good as you maintain it but always follow the manufacturers guidelines.

This task of cleaning the greasy engine isn’t for everyone, so if you don’t feel comfortable doing it ask a professional!


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The uses shown and described for WD-40 Multi-Use Product were provided to WD-40 Company by the users themselves. These uses haven’t been tested by WD-40 Company and do not constitute a recommendation of suggestion for use by WD-40 Company. Common sense should be exercised whenever using WD-40 Company products. Always follow the instructions and take heed of any warnings printed on the packaging.

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